Not wanting to eat or drink in pregnancy

I was so unwell yesterday with food poisoning and throwing up all day even bringing up water. Ever since then the thought of any food makes me feel sick and I’m struggling to drink either. I feel like the more water I drink the worse I feel. I don’t know whether the water is suddenly not agreeing with me it’s hard water where I live. I feel dehydrated with a dry mouth and drinking makes my stomach hurt and feel sickly. Anyone else had this problem at all?

I’ve tried flat coke and normally have swish but even that’s making me feel sick

Help please 😩